The objective of this study was to evaluate the carotenoid concentrations, by applying near infrared reflectance spectroscopy (NIRS) model developed by using HPLC data set, in samples of maize grain derived from 64 different genotypes. The results showed that the methods of analyses (HPLC vs. NIRS) were in good agreement, and their association (r2) ranged from 0.82 for lutein to 0.94 for zeaxanthin. In addition, our results provided evidence that wide differences existed among kernel samples for all carotenoid components examined: violaxanthin, lutein, zeaxanthin, isolutein, cryptoxanthin and carotenes. Lutein and zeaxanthin, the prevalent carotenoids present in the maize kernels, ranged, respectively, from not detectable (Quarantino bianco) to 29.70 (Lo1010×Lo1058) and from 0.5 (Quarantino bianco) to 38.20 mg kg-1 (Quarantino giallo).
Carotenoids concentration among maize genotypes measured by near infrared reflectance spectroscopy (NIRS ) / N. Berardo, O.V. Brenna, A. Amato, P. Valoti, V. Pisacane, M. Motto. - In: INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES. - ISSN 1466-8564. - 5:3(2004), pp. 393-398. [10.1016/j.ifset.2004.03.001]
Carotenoids concentration among maize genotypes measured by near infrared reflectance spectroscopy (NIRS )
O.V. BrennaSecondo
;
2004
Abstract
The objective of this study was to evaluate the carotenoid concentrations, by applying near infrared reflectance spectroscopy (NIRS) model developed by using HPLC data set, in samples of maize grain derived from 64 different genotypes. The results showed that the methods of analyses (HPLC vs. NIRS) were in good agreement, and their association (r2) ranged from 0.82 for lutein to 0.94 for zeaxanthin. In addition, our results provided evidence that wide differences existed among kernel samples for all carotenoid components examined: violaxanthin, lutein, zeaxanthin, isolutein, cryptoxanthin and carotenes. Lutein and zeaxanthin, the prevalent carotenoids present in the maize kernels, ranged, respectively, from not detectable (Quarantino bianco) to 29.70 (Lo1010×Lo1058) and from 0.5 (Quarantino bianco) to 38.20 mg kg-1 (Quarantino giallo).
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